/*
 * Copyright 2020 Haulmont.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.jmix.core.accesscontext;

import org.springframework.lang.Nullable;

/**
 * Marker interface for classes defining authorization points.
 */
public interface AccessContext {

    /**
     * Returns a human-readable explanation of constraints applied to the current context instance for logging of
     * authorization decisions. Null if the current context does not impose any constraints.
     */
    @Nullable
    default String explainConstraints() {
        return null;
    }
}
